Northstar Engines and System Technical Discussion Discussion, swap entire cradle from another car?? in Cadillac Engine Discussion; I have a question. I know you have to replace an Y engine with a Y engine and the same ...
But can you swap a 95 sts engine trans cradle, computer into a 94 sls?
Yes you can... My 94 eldo (vin Y) currently has the engine/trans/PCM from a VIN 9, 1994 STS in it. It's works perfectly.
The only differences between the 94 and 95 are with the intake manifold... In 95 the intake manifold was redesigned to give a better air/fuel mixture. Both the 94 and 95 intake manifolds are interchangeable, so there won't be a problem there. I would use the 95 intake though simply because it would give you a couple more mpg.
so other than the usual pull engine and reinstall......the computer will be ok? Nothing to do with maybe body differences or anything? Are there body connectors that go into the computer as well or are those different computers?
Almost like plug and play then? If so i think i will go that route and use this tranny for my eldo.....
it's easier to get at the PCM and its wiring if you take out the under-dash panel. Don't forget to disconnect the vacuum line and the big black harness connector where the engine harness meets the dashboard harness.
As for the 98 concourse cradle bolting into the 97 STS... It should work. It really depends on a few things such as the routing of the brake lines, and whether or not your alternator is watercooled. The PCM on those years is underneath the air filter box. The engine, transmission and PCM are the same (should be plug and play); however, the engine wiring harness may be different. Even though the PCM is under the air filter box, the engine harness still has to connect into the dashboard wiring harness, so you'll have to disconnect that as well as the vacuum line VIA the under-dash panel.
Automobile(s): 97, 97, RIP 98, 99 STS with Jakes studs
Re: swap entire cradle from another car??
from looking last night, we started disconnecting the wiring on the concours, today the cradle is getting dropped and the car will be done. There is an extra plug on my wiring harness where the emissions plugs come out on my 97. The plug simply is not there on the 98 concours. It's little things like this that will make or break the swap i guess. Different year cars, hell, different locations..... the Concours is a US car, the STS is a Canadian car. Emissions may be different. I also have a 94 STS thats looking for an engine swap, and maybe now a 2000. (im not sure i wanna deal with a 2000....)